Investigation of charge states of /sup 147/Dy and /sup 199/Po produced in complete-fusion reactions

Journal Article · Thu Mar 01 04:00:00 EST 1979 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5999824

Skobelev, N K; Maidikov, V Z; Popeko, G S; Gofman, Y V; Nemets, O F; Oganesyan, Y T

The nuclei /sup 147/Dy and /sup 199/Po have been obtained in the nuclear reactions /sup 113/Cd(/sup 40/Ar,6n) and /sup 164/Dy(/sup 40/Ar,5n). The charge states of the recoil atoms have been studied by means of a wide-range magnetic analyzer. It is found that the charge distributions of the recoil atoms do not agree with the theoretical ones, the average values of equilibrium charges being significantly greater than expected. Additional charge exchange of Dy and Po ions in a thin carbon foil (approx.45 ..mu..g/cm/sup 2/) at a time approx.10/sup -8/ sec after their emission from the target led to charge distributions of these ions in satisfactory agreement with the theoretical values. This difference in the charge distributions is explained by the presence in Dy and Po nuclei of strongly converted transitions with formation of vacancies in the inner electron shells of the atoms, filling of which leads to an increase of the charges of the emitted Dy and Po ions. The possiblity of formation of such vacancies as the result of atomic transitions is discussed.

• Research Organization: Joint Institute for Nuclear Research
• OSTI ID: 5999824
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 29:3; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

651725* -- Nuclear Properties & Reactions
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651825 -- Nuclear Properties & Reactions
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ARGON 40 REACTIONS
BARYONS
CADMIUM 113 TARGET
CAPTURE
CHARGE DISTRIBUTION
CHARGED-PARTICLE REACTIONS
DYSPROSIUM 147
DYSPROSIUM 164 TARGET
DYSPROSIUM ISOTOPES
ELECTRIC CHARGES
ELECTRON CAPTURE
ELECTRON LOSS
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
FUSION REACTIONS
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
INNER-SHELL IONIZATION
INTERMEDIATE MASS NUCLEI
IONIZATION
ISOTOPE PRODUCTION
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
POLONIUM 199
POLONIUM ISOTOPES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RECOILS
SECONDS LIVING RADIOISOTOPES
TARGETS